Truly Monodisperse Molecular Nanoparticles of Cerium Dioxide of 2.4 nm dimensions : A {Ce100 O167} Cluster
Abstract Ultra‐small nanoparticles of CeO2 obtained in molecular form, so‐called molecular nanoparticles, have been limited to date to a family whose largest member is of nuclearity Ce40 with a {Ce40 O58} core atom count. Herein we report that a synthetic procedure has been developed to the cation [Ce100 O149(OH)18(O2 CPh)60(PhCO2 H)12(H2 O)20]16+, a member with a much higher Ce100 nuclearity and a {Ce100 O167} core that is more akin to the smallest ceria nanoparticles. Its crystal structure reveals it to possess a 2.4 nm size and high D2d symmetry, and it has also allowed identification of core surface features including facet composition, the presence and location of Ce3+ and H+(i.e. HO−) ions, and the binding modes of the ligand monolayer of benzoate, benzoic acid, and water ligands..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:133 |
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| Enthalten in: |
Angewandte Chemie - 133(2021), 22, Seite 12699-12704 |
| Beteiligte Personen: |
Russell‐Webster, Bradley [VerfasserIn] |
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| BKL: |
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| Anmerkungen: |
© 2021 Wiley‐VCH GmbH |
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| Umfang: |
6 |
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| doi: |
10.1002/ange.202103110 |
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| funding: |
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| 520 | |a Abstract Ultra‐small nanoparticles of CeO2 obtained in molecular form, so‐called molecular nanoparticles, have been limited to date to a family whose largest member is of nuclearity Ce40 with a {Ce40 O58} core atom count. Herein we report that a synthetic procedure has been developed to the cation [Ce100 O149(OH)18(O2 CPh)60(PhCO2 H)12(H2 O)20]16+, a member with a much higher Ce100 nuclearity and a {Ce100 O167} core that is more akin to the smallest ceria nanoparticles. Its crystal structure reveals it to possess a 2.4 nm size and high D2d symmetry, and it has also allowed identification of core surface features including facet composition, the presence and location of Ce3+ and H+(i.e. HO−) ions, and the binding modes of the ligand monolayer of benzoate, benzoic acid, and water ligands. | ||
| 700 | 1 | |a Lopez‐Nieto, Javi |4 aut | |
| 700 | 1 | |a Abboud, Khalil A. |4 aut | |
| 700 | 1 | |a Christou, George |4 aut | |
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